System and method to communicate time stamped, 3-axis...

Details System and method to communicate time stamped, 3-axis... System and method to communicate time stamped, 3-axis...

G - Physics

01

S

G01S 5/14 (2006.01)

Patent

CA 2382924

A remote communications apparatus (10) such as a sell telephone is equipped with a satellite position system SPS receiver (26) to acquire location data. The location data is encoded using multiple audio frequency tone encoding (48) such as DTMF for transmission over the voice channel (70) of the telecommunications network (12), including cell CTSS (134) and the PSTN (138) to a call receiver apparatus (14) such as a public safety answering point (PSAP). Location data connection is effected using a fixed antenna (1402) receiving apparatus (1404) and related database (1412), in the network (210) or at the answering point (166) to improve location accuracy. The invention provides advantages of low cost of implementation, improved location accuracy, and transparent signalling of location data so that simultaneous voice communication is uninterrupted.

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